Rule-planing apparatus.



No. 745,725. PATENTED DEC. 1, 1903. H. G. HANSEN.

RULE PLANING APPARATUS.

APPLICATION FILED MAY 9, 1903. N0 MODEL. 2 SHEETS-SHEET 1.

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PATENTBD DEC. 1, 1903.

H. G. HANSEN. RULE PLANING APPARATUS.

APPLICATION FILED MAY 9, 1903.

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Patented December 1, 1903.

PATENT OFFICE.

HANS C. HANSEN, OF NEWTON, MASSACHUSETTS.

RU LE-PLANING APPARATUS.

SPECIFICATION forming part of Letters Patent N 0. 745,725, datedDecember 1, 1903- Application filed May 9, 1903. Serial No. 156,400. (Nomodel.)

To aZZ whom it may concern.-

Be it known that I, HANS O. HANSEN, a citizen of the United States,residing at Newton, in the county of Mid dlesex and State ofMassachusetts, have invented an Improvement in Rule-Planin g Apparatus,of which the following description, in connection with the accompanyingdrawings, is a specification, like letters on the drawings representinglike parts.

This invention relates to a novel apparatus for planing the edges ofbrass rules for use by printers in connection with forms of type. Theedges of these rules must be exactly parallel, and to effect this resultexcessive care has to be practiced, and it is very difficult to make theedges exactly parallel in the ways now practiced. In my experimentsaiming at the production of an apparatus by which to do this work I havediscovered that inaccuracies in the parallelism of the edges of therules come from inaccuracies in the level of the surface supporting thefirst edge to be planed while the second edge is being planed.

Inaccuracy in parallelism of the edges of the rule in plans nowordinarily practiced may arise from sustaining the planed edge of therule on a surface which is not in exactly a true horizontal plane andalso from the presence of any dust or foreign matter sustaining theunder edge of the rule.

In the apparatus to be herein described I have devised a novelsupporting-surface for the lower edge of the rule, said surfacecomprising a series of longitudinally-adjustable supports the inner endsof which directly sustain the lower edge of the rule. These supports maybe adjusted so that their ends may stand in exactly the same line, andthe combined series of supports sustain the lower edge of the rule atclose intervals throughout its length. ports is clamped between jaws,one of which is movable toward and from the other, the jaws. adaptingthemselves to the thickness of the rules. The movable jaw is under thecontrol of a manuallycontrolled device, and I prefer to use two seriesof springs, one of which acts to insure the clamping of the rule betweenthe jaw members, the other series The rule sustained by the supservingto maintain a minimum pressure of the jaw on the rule, as will bedescribed. The bed in which the series of rule-supports is mounted isprovided with tracks to guide the peculiar plane to be described.

Figure l in front elevation represents a ruleplaning apparatusillustrating my invention in one of the best forms now known to me. Fig.2 is a top view thereof. Fig. 3 is an under side view of the bed of theapparatus, some of the springs 4L and 4 being broken away; Fig. 4, across-section in the line (.6, Fig. 3, but with the bed inverted orright side up. 4 shows one of the collars O detached. Fig. 5 is alongitudinal section in about the line at, Fig. 4. Fig. 6 is acrosssection in the line :0 Fig 2.

The bed A, preferably of cast metal, will in practice rest on the top ofa table or bench B, and below the bench, on the floor, I secure a standB, in which is pivoted a manually-controlled device, shown as a treadleor lever B This treadle is connected at its upper end by a rod B withone end of an arm 0 of a rockshaft 0, mounted in suitable bearings A ofthe bed A. This rock-shaft has secured to it a series of collars A 0each having an upturned arm (see Fig. 4) suitably forked to embraceloosely a series of rods a h, each rod having at its inner end ascrew-thread which enters a screw-threaded hole in the movable jaw C ofthe rule-clamping mechanism, the fixed jaw being represented at O asdepending from or forming part of the'bed A.

Each of the rods cab is provided with a collar 5, and each rod isextended through a spring a or Pfione end of which abuts the collar 5and the other end the inner wall of the flanged part of the bed A. Therods a are longer than the rods Z). The rods to extend farther throughthe web of the bed at the left (see Fig. 4) than do the rods 1), and theouter ends of rods to have heads a. The collars 5 on the rods a arelocated a little farther toward the outer end of the rod viewing Fig. 4and a little farther from the clamping member C than the like collars 5on the rods 1). Normally the springs 4 and L on the rods to and b act tomove the, clamping member 0 toward the rule to clamp the same inposition to be acted upon by the plane D, to be described, and when theclamp engages the rule the free end of the treadle is maintained in itsmost elevated position.

The free end of the treadle B may be depressed and cause the arms A ofthe rockshaft to act on the collars 5, connected with the rods 19, andmove the clamping member 0 away from the member 0 such movement beingresisted} by the spring i and if the rock-shaft is not turned far enoughto cause the arms 0 to meet the collars on the rods a the springs 4 willcontinue to hold the rule under slight pressure. If a rule is to befully released, the depression of the treadle will be continued untilthe arms 0 also meet the collars connected with the rods a, andthereafter both rods a and Z) are moved to remove the pressure of bothsets of springs Al and 42? from the clamp.

It is desirable to prevent the faces of the clamps contacting when arule is absent from the apparatus. This is effected by the heads a onthe rods a, they acting when a rule is removed to prevent such extent ofmovement of the clamping member (J to the right, Fig. 4:, as will causeits face to bear against the face of the clamping member The jaw O restson the horizontal bottom of a guideway A depending from the bed A, andthe upper side of the clamp is acted upon by a plate A secured to thebed by suitable screws a said I plate forming part of a track for theplane D.

The bottom of the guideway A is provided with a series of holes that aretapped to receive a series of supports cl, shown as screws havingplane-faced ends and provided at their outer ends with heads suitablyshaped to be engaged by a wrench or any other usual device for turning ascrew. The inner ends of these supports project above the plane of theupper side of the horizontal part of the guideway, so that it isimmaterial whether said face is in atrue plane or not, as the supportsmay be adjusted accurately so that their ends will lie in exactly thesame plane. These supports sustain the lower edge of the rule cl to beplaned, and it will be understood that any chips or dirt or dust gettinginto the guideway may be readily dusted off from the ends of thesupports, and the presence of dust and dirt in a limited quantity thatmight seriously interfere with the operation of the apparatus were itnot for the support will not interfere with the correct action of theapparatus, as said dirt may occupy the spaces between the ends of thesupports.

The bed A has secured to it, as shown, by suitable screws (1 a track Dthat is embraced by a downturned lip 61', forming part of a plane D, tobe described. This plane comprises, as shown, a hand portion 13, towhich is secured by screws lat a bottom plate 15, to which is pivoted at16 a face-plate 17. The

bottom plate 15 has connected with it an adjusting-screw 18, the end ofwhich acts against the free end of the face 17, and a stop-screw 19-,which may be adjusted to meet the upper side of the face-plate after theadjustment of the screw 18 with relation to the body of the plane hasbeen effected. The top of the faceplate is borne upwardly against notonly the adjusting device, but the stop-screw by means of a spring 20,surrounding a screw 21, entering the face-plate through a hole in theblock D. The bottom plate 15 has slots 22 at each side in which arefitted the ends of a bit-holder 28, having a depending hub 29, in whichis held in adjusted position a bit 23, the bit being adjustable in thehub by means of suitable screws 24. The lower end of the bit extendsthrough a slot or throat in the faceplate 17. The bit-h older is actedupon to keep it seated to its work by means of screws 25, and I mayinsert, if desired, between the end of each screw and the bit-holder ashim or block 26.

The plane may be slid forward on the track by hand until the exposededge of the rule is of the proper smoothness, and one edge having beenplaned the rule is turned over and the planed edge is sustained on thesupports.

The supports shown may be used to advantage as stock-sustaining means inany usual metal planing or finishing apparatus or machine where it isdesired to support with the greatest accuracy stock to be planed orfinished, said supports avoiding the planing of surfaces to truth tosustain the stock. The bit constitutes a metal-finishing tool.

Having described my invention, what I claim, and desire to secure byLetters Patent, 1s-

1. In apparatus of the class described, a guideway having a verticalfaced clamping member, said guideway having a series of threaded holes,and a series of screws constituting adjustable supports to sustain thestock being acted upon, and a movable clamping member.

2. In apparatus of the class described, a bed, means comprising a seriesof adjustable supports mounted in alinement on the bed to sustain thestock being acted upon, and means to engage the opposite sides of andclamp the stock above said alined series of supports.

In apparatus of the class described, a bed having a longitudinal track,a separable clamp below it to engage the opposite sides of and holdstock to be planed at one edge, means comprising a series of adjustablesupports in alinement below the clamp to sustain the lower edge of thestock, and a plane movable on said track and having abit to act on theupper edge of the stock held in the clamp.

4. In apparatus of the class described, a bed having a longitudinaltrack, a separable spring-closed clamp below the track to engage theupright sides of and hold stock to be planed at one edge, meanscomprising a series In testimony whereof I have signed my of adjustablesupports in alinement below the name to this specification in thepresence of clamp to sustain the lower edge of the stock, twosubscribing witnesses.

a plane movable on said track and having a HANS C. HANSEN. bit to act onthe upper edge of the stock held in the clamp, and means to open theclamp for the insertion or removal of stock.

Vitnesses:

GEO. W. GREGORY, EDITH M. STODDARD.

